<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>
    // 2、获取tbody元素
    var tbody = document.querySelector('tbody');

    // 搜索按钮dom元素
    var searchButton = document.querySelector('.search-price');

    // 开始输入框元素
    var startInput = document.querySelector('.start');

    // 结束输入框元素
    var endInput = document.querySelector('.end');

    // 获取元素
    var proName = document.querySelector('.product');
    var searchPro = document.querySelector('.search-pro');
  </script>
</body>

</html>